Medical Dictionary Definitions A - Z - «P»:

Page kidneyPage kidney: Chronic longstanding compression of the kidney resulting in hypertension.
The kidney is compressed, most often, by a post-traumatic subcapsular hematoma (a collection of blood beneath the capsule surrounding the kidney) or, less often, by a cyst or tumor pressing on the renal parenchym...

Paget diseasePaget disease: A chronic bone disorder that typically results in enlarged, deformed bones due to excessive breakdown and formation of bone tissue that can cause bones to weaken and may result in bone pain, arthritis, deformities or fractures. The disease is named for the great English surgeon and pa...

Paget disease of the breastPaget disease of the breast: The combination of scaly skin changes of the nipple resembling eczema and an underlying cancer of the breast. The nipple is inflamed because of the presence of Paget's cells. These large irregular cells are themselves not cancerous, but they are almost always associated...

PageticPagetic: Pertaining to Paget disease, a chronic disorder that typically results in enlarged, deformed bones due to excessive breakdown and formation of bone tissue that can cause bones to weaken and may result in bone pain, arthritis, bony deformities and fractures.
Pagetic bone has a characteristic...

Pagon syndromePagon syndrome: Congenital anemia with spinocerebellar ataxia (wobbliness). The anemia is characterized by sideroblasts (iron-rich ancestors of red blood cells). The spinocerebellar ataxia becomes evident by 1 year of age.
The syndrome is inherited in an X-linked recessive manner and is due to muta...

PainPain: An unpleasant sensation that can range from mild,
localized discomfort to agony. Pain has both physical and emotional
components. The physical part of pain results from nerve stimulation.
Pain may be contained to a discrete area, as in an injury, or it can
be more diffuse, as in disorders ...

Pain managementPain management: The process of providing
medical care that alleviates or reduces pain. Pain
management is an extremely important part of health care,
as patients forced to remain in severe pain often become
agitated and/or depressed and have poorer treatment
outcomes. Mild to moderate pain can...

Pain unitPain unit: A measurement of the intensity of pain. See also: Dol....

Pain, backPain, back: Pain felt in the low or upper back. There are many causes of back pain. Pain in the low back can relate to the bony lumbar spine, discs between the vertebrae, ligaments around the spine and discs, spinal cord and nerves, muscles of the low back, internal organs of the pelvis and abdomen,...